Congrats on completing the jam. I thought it was a well done implementation of the theme! Singing always sounds better in the shower. :D The text that tells you whether you hit the note or not was a bit big, it kinda visually interfered with the falling notes.
Had a bit of issues with the game not fitting into the browser until I went in full screen - you might want to switch your project to "manual fit" and adjust the size available - my game is set to 960x640 for example to avoid being cut off.